Press mechanism



Nov. 20, 1923. 1,474,473

W. F. HEROLD Filed Aug. 25. 1921 4' Sheet-Sheet 1 PRESS MECHANISM Nov. I20 1923. 1,474,473

W. F. HEROLD PRESS MECHANISM Filed Aug. 25 1921 4 Sheets-Sheet 2 Nov.20,1923. v 1,474,473

W. F. HEROLD :1 4

PRESS MECHANISM 4 Sheets-Sheet 4 Filed Aug- 25. 1921 IIlIIIIlIIII I V [NVENTOR wzazf BY 97 I A), ATTORNEY Patented Nov. 20, 19 23.

UNITED STATES PATENT OFFICE;

WALTER F. HEROLD, 01E NEWARK, NEW JERSEY, ASSIGN OR TO THE BASSICK COM-PANY, F BRIDGEPORT, CONNECTICUT, A CORPORATION OF CONNECTICUT.

PRESS MECHANISM.

Application filed August 25, 1921. Serial No. 495,254.

To all whom it may concern: adjustment; or change made, by hand or Be itknown that I, VVALTER' F. HEROLD, by some mechanism other than the pressa citizen of the United States, and a resident head, after which it willagaln travel under of Newark, in the county of Essex and State the presshead and be operated on by a of New Jersey, haveinvented certain newdifferent set of pressing members, carried 60 and useful Improvements inPress Mechaby the press head. With such an arrangenism, of which thefollowing is a specifiment an article may be completely formed cation.or operated upon without removing it from The invention relates to pressmechanism, the (lie carrier of the machine, in cases in and particularlyto devices in which difwhich, under the former practice, it woud 65ferent pressing operations may be carried have to be removed from onemachine after out in the same machine. Machines are certain operationsand placed in another known in which a plate carrying dies is machine,or other machines, one after the stepped around so as to bring anarticle in other, which would perform subsequent 0pone of the dierecesses successively beneath crations. 70 punches or other pressingmembers carried Other objects of the invention comprise by the press.head or ram, which successivelv the provision of novel and improvedcomerform different operations on the. article. binat-ions of elementsand details of con- One of the objects of the present invenstruction allas will be more fully described tion is to provide an improvedconstruction hereinafter and particularly pointed out in 75 of thecharacter referred to, whereby, inter the appended claims. alia, thecarrier plate referred to will carry In order that a clearerunderstanding of articles to be operated upon two or more the inventionmay be had attention is herliy limes beneath the'press head, in such amandirected to the accompanying drawings 26 Her that different pressingoperations will forming part of this application and illus-- 80 beperformed upon each article during the (rating one embodiment thereof.In the second or subsequent time it is carried bedrawings, neath thepress head, from those performed F igure 1 is a side elevation of apunch during the first or former time. This may press embodying one formof the invencc accomplished by so arranging the feed tion; 1 8 of thecarrier plate in relation to the spac- Fig. '2 is a front elevation ofthe same; ing of the die recesses 0n the plate and the Fig. 3 is ahorizontal section taken on punching or pressing members carried by line3-3 of Fig. 2; the press head that each article, on a second F 4 is avertical section taken on line trip beneath the press head, will be pre-%4 of Fig. 3; and, 94)

sented successively to punches or pressing F gs. 5 to 12 inclusive, arerespectively members different from those to which it vertical sectionstaken on lines 5-5, 6-6, was presented on the previous trip.- One 77,88, 9-9, 10-10, 11-11and 12-12 specific manner in which this may beacof'Fig. 3.

40 comp'lished is by providing an odd number 7 Referring to the drawingsthe machine of die recesses in' the carrier plate, and feedmay beprovided with a suitable frame 1, ing. the plate an even number of diespaces, carrying a crank shaft 2 which may be rosuch as two die spaces,forward, each actated from any suitable source of power, tuation.Accordingly, a die space which this shaft being illustrated as providedwith 45 stops at position one, in one rotation of the a pulley 3 whichmay be rotated by belt piate will pass by this position during theconnection. The press head 4 is vertically next rotation of the plate,and will stop reciprocated between suitable guides from instead atposition two, where-it will be crank shaft 2 by the connecting rodindipresented to a different punch or pressing cated at 5. The presshead or ram 4 carries 50 member. One advantage of such an ar pluralityof punches or pressing members rangement is. that, after an article hasbeen" indicated generally a-t 6. operated on by one or more pressingmem- Articles to be operated upon are carried berscarrred by the presshead, it will'come y a carrierplate which in'the embodiment out into aposition which Wlll permit someof the invention illustrated takes theform 5 thing further to be done to it, or some of a rotatable disc 7which is mounted-for'll odd number of recesses rotation about the axisof the vertical pin 8. Plate 7 may downwardly extending boss 9 mountedfor rotation upon a fixed member 10, pin 8 extending through boss 9 andmember 10 and being suitably secured in osition as by providing the samewith a ead and a nut 11, 11, on the upper and lower ends thereof. Member10 maybe carried upon :1 transverse portion 12 of the frame of themachine. The construction so 'far described is all old.

The carrier plate 7 is provided with a pluralit of recesses in which thedies generally in icated at13 are positioned. These dies are adapted tocontain articles which are to be brought beneath the pressing members -6of the ram or pressing head 4 to be operated upon. These dies should be.so spaced in relation to the positions of the pressing members 6 and inrelation to the feed of the carrier plate 7, that an article carried byany oneo progressed v successively the pressing members 6, during tionor movement of plate 7, and, after being carried out from beneath thepressing head then will subsequently be progressed beneath certainothers of the pressing members 6 carried by the pressing head. In the fthe dies 13 will be beneath certain of embodiment of the invention.illustrated this result is accomplished by providingan in plate 7 "andies carried thereby, arranged in a circular series adjacent the outeredge of plate 7, plate 7 being advanced step by step, each step rotatingthe plate-a peripheral distance sufficientto advanee each die recess thedistance between an even number of diefirecesses.

Each die 13 may be provided with a suitable 1 recess 14:" in. which anarticle to be operated upon may be positioned. A knock out pin 15 isalso preferably positioned beneath recess 14 in position to raise thearticle in recess 14, so that it may readily be removed therefrom, afterthe operations upon the article have been completed.

In the form of construction shown each knock out pin comprises a stemextending upwardly from a disc 16 which is slid'ab ly mountedin a recess17 in the lower part of the die, the stem 15 extending upwardly-fromrecess 17 through a suitable opening by appropriate pawland ratchetmechanism and for this-purpose may be rovided a out its with equallyspaced notches 20 be provided with acentral' is mounted one rotasuitablespring 32 which 'ried by theapress head may socket for a caster is to.

I generally by in the die so as to enter recess 14 and dislodge thearticle lus may be fixedly periphery, these notches preferably being sospaced that radial lines extending from the center of disc 7 and passingthrough the vertical axes of dies 13 will also ,pass through notches20'. v

The disc. 7 is rotated upon each operation of the press head through aperipheral distance equal to the distance between an even number ofnotches 20, the construction illuS trated being intended to be advancedthe distance between two notches, upon each actuation of the press. Thismay be ac-- complished by any suitable mechanism, As illustrated-crankshaft 2 of the press may be provided with an eccentric. 21 or equiva entdevice whereby the rod 22 is moved up and down as shaft 2 rotates. Thelower end of rod.22 is connected by arm 23 to a short horizontal shaft24 supported in suitable -bearings25. This shaft carries another arm 26the upper end of which, indicated in Fig. 3 at 27 ,-moves within a slotin a rod 28 which for horizontal reciprocation through bearingsindicated at 29.

A pawl 30 is pivotallyconnected to 'member 28-asshown at 31, and thispawl is adapted to coeoperate with not'ches 20 and to thereby advanceplate 7 a distance between two noitches-duringeaoh rotation of shaft 2.aPawl 30'may be spring pressed into position to engage vvith notches 20during the forward movements of the pawl, by a may for example be aspiral spring having one-end connected to member 28 and the other endconnected 7 to a, tail 33 of the pawl.

As illustrated plate 7 extends partly beneath the-pressheadand partlyoutside the edges thereof. The pressing. devices 6 carbe of variouscharacters and of a varied number in accord ance with the operationswhich are to be performed. In the embodiment. ofthein vent onillustrated,'by way of example, a

be formed from a tubeof metal and have a washer, or leg mount securedthereon. To perform this operation the pressing members designatedthegreference character 6 may be four in number, indicated respectivelyby the reference characters 34, 3'5, 36 and 37. which are adapted toperform different operations upon the metal tube. In the embodimentillustrated an indicatmg. plate 38 in the form -ofa partial annumountedin front ofthe plate 7, to extend partly around. the same. At variouspoints ,on. this indicating. plate, as is indicatedmt 39,somezdesignation may be prmtedisuchas the word .tube to indlcate thatthe blank tubes may be dropped into empty dies which .momentarily stop.opposite these designations. Also, atpoints intermediate thedesignations 39, other indi-- cations 40 may be printed on theindicating plate, such as the words leg mount, which in the particularform of apparatus illustrated indicates that a leg mount. or washer mayhe slipped over partially formed sockets, which have been carriedbeneath the press head and thus partially formed and are, therefore,ready to receive the leg mounts which are to be secured in position onthe sockets (hiring the second travel of the latter beneath the presshead.

A metal tube 41 is indicated in Fig. 5 as having been slipped into therecess 14 of any one of the dies 13, at any of-the positions indicatedat 39. Plate 7 being stepped around two spaces at a time, the tube 41will arrive beneath the pressing member 34, as is indicated in Fig. 6.The object of this member is simply to set the tube firmly in positionwithin 'the die recess 14. Member 34'may suitably comprise a pilot 42adapted to enter the upper end of the tube and a horizontal face 43,surrounding the base of the pilot 42, adapted to strike against theupper end of the tube. Member 34 is of such length as merely to pressthe tube firmly into recess 14 without doing anything further.

The outline of the press head is indicated in Fig. 3 in dotted lines at44. A bolster or fixed member 45 is mounted beneath the portion of theplate 7 time beneath the press head, the dies 13 sliding overthisbolster so as to be firmly supported during the pressing operations.Bolster 45 may be provided with an annular recess 46 through which thedownwardly extending portions 19 of the knock out pins 15 will move.

The tube 41 having been properly set in position, the next forwardactuation of plate 7, moving the same forward two notches or two diespaces, as stated, will position this tube beneath the punch or pressingmember 35 shown in Fig. 7. It will be noted that the recess 14 of eachdie is provided With a curved bottom portion 47. Each knock out pin 15is preferably provided with a short upward extension 48 of reduceddiameter which is positioned within the lower end pressing member 35 isto push tube 41 downwardly a sufficient amount to arch or dome its lowerend, as is indicated at 49 in Fig. 7. Accordingly member 35 may beprovided with a striking surface 50 adapted to engage against the upperedge of tube 41, with a pilot 51 adapted to enter the upper end of thetube and with an annular wall 52 adapted to extend around the upper endportion of the tube. The portions 51 and 52 of member 35 preventing theupper portion of the tube from buckling inwardly or outwardly andaccordingly downward pressure on the tube results in curving the lowerend of the same, as is shown at 49, against the which extends at any,

10, which as is indicated of recess 14. I The function of curved surface47 of the die, the upward extension 48 of pin 15, in the form ofconstruction illustrated, forming an abutment about which the lower endof the tube will be positioned at the end of this position of member 35and its downwar l movement will be such as to desired doming of tube 41.

The next advance of tube 41, brings it beneath pressing member 37, asshown in Fig. 8. This member is adapted to form the peripheral bead 53about the upper portion of tube 41, member 37 being so formed and of theproper length to obtain this result, as will be obvious from the drawmg.

The tube 41 under consideration will now be advanced out from under thepress head. As soon as it arrives at any of the positions indicated at40 an operator will slip the flanged washer or leg mount indicated inFig. 9 at 54 over the upper end of tube 41. This leg mount comprises ametal disc having a central opening therethrough through which the upperend of tube 41 will extend, when the leg mount has been dropped inposition, the .leg mount resting upon the peripheral head 53 which hasnow been formed on the tube.

In the continued operation of the machine tube 41 will again movebeneath the press head but will not stop beneath pressing members 34,35, or 37 because of the fact that an odd number of dies are providedwhile the plate 7 is stepped around an even number of spaces each time.Accordingly no punches or pressing members will be encountered until thetube is brought beneath the pressing member 36, illustrated in Fig. byFig. 3 may be position-ed intermediate the pressing members 35 and 37.Pressing member 36 is adapted to press the upper end of tube 41 into aperipheral bead 55 which is firmly of two spaces,

pressed against the upper surface of leg mount 54 so that the latterwill be firmly held between beads 53and 55. Member 36 may be arranged toproduce this result in an obvious and well known manner.

Referring to Fig. 3, it will be noted that the positions of pressingmembers 34 and 35, indicated by section lines 66 and 7-7 are two diespaces apart, and the position of member 37, indicated by section line88 is two die spaces beyond the position 0 member 35. Pressing member36, however,

operation. The

produce the as stated, is intermediate members-35 and 37 (see sectionline 10-10 in Fig. 3), so that member 36 is only one (lie space awayfrom either member 35 or 37. 1

The socket with washer attached now being complete nothing remains butto remove the same from the die, which. is preferably doneautomatically. In the form of construction illustrated the tube 41 isfirst loos- I therein by a the die cavity crank shaft ally mounted asshown at 65 on block 63, le-

- cally mounted pin 61 knock out device shown in sion of a pm partly,come around tothe operators ened in the die cavity and somewhat raisedknock out mechanism of known form, indicated in Fig. 11.

This may compr se a rod 56 which extends downwardly from the press head4 and is pivotally connected at its lower end to an arm 57 wh ch ispivoted intermediate its length on a pm 58 within a recess 5 oppositeend of arm 57 is provided with an upwardly extending pro ect1on 60adapted to strike against the bottom surface of the bottom portion19 ofthe knock out pm 15 of the die 13 brought to rest above the same, thedownward movement of the press head and link 56 serving to raise thesocket 41 in somewhat so that the leg mount 54 fastened on the upperendof the socket will be positioned a short distance above the top of thedie.

It is, of course, now only necessary to remove 'the finished socket fromthe die recess which may be accomplished by known mechanism, asindicated in Fig. 12. As illustrated crank shaft 2 may carry aneccentrithereon to which a' vertical link 62 is connected. A block 63 issecured to the lower en of link62 and is suitably guided to rise" andfall each rotation of 2, A pick up lever 64 is pivotver 64 having a'recess66 formed in one side of the same. As each tube 41 which has beensomewhat raised in its die recess by the Fig. 11, comes around to theposit-ion indicated by the section line 1212 in Fig. 3, the tube 41 willenter the recess 66 in the djacent side of lever 64, with the leg mountTube 41 being so positioned, the press head starts to rise. Pick uplever 64 tally positioned at this time by the previ- 67 on block 63 onwhich lever 64 rests. The end of lever 64 beneath'the le mount 54 willaccordingly rise vertically a suflicient amount to lift the socket outof its cavity. The tail portion 64 of the pick upvlever then strikesagainst a fixed pin 68 and as block 63 continues to rise the stoppage ofthe tail portion of lever 64 willresult in swinging the lever in acounterclockwise direction about its pivot until the lever reaches avert cal position, the com- .pleted caster socket being thereby thrownto the left. referring to Fig. 12.

It will be obvious that the operations described will be carried on.continuously, blank tubes being positioned by the operator in each dierecess as the empty recesses reach the operators position and leg mountsbeing placed in position on each of the formed sockets as .fast as thelatter position. It will also be obvious that the invention is notlimited to the particular method of making sockets for casters which hasbeen particuof the invention, I as of considerable breadth, as isindlcated 9 in the bolster 45. The

radii of said plate drawn having a pair of pressing mem 54 above lever64.

is horizonticle in said die beneath larly various pressing operations mabe carred out by similar mechanisms within the scope the latter beingconsidere by the accompanying claims.

1. In a press mechanism, the combination of aurotatable plate theperiphery of which may bedivided into equalspaces by an odd number ofdividing points, a plurality of dies spaced peripherally thereabout, atequal distances from the axis of said plate, on

through said dividing points, a plurality of pressing members, in linewith the path of said dies, two of said members being separated other adistance equal to an even number of said equal spaces and a third one ofsaid members being separated from one of said first two members adistance equal to an odd from each described, way of example, but that Inumber of said spaces, means for actuating of dies spaced equaldistances apart, peripherallythereabout, a reciprocating press head ers,

the combination.

tione'd above the path of said dies, andmeans for rotating said platestep by step a distance of two die spaces upon each opera- U011 of sadpress head, said pressing mem- -bers being separated from each other adistance equal to where 'n is an odd'number.

3. In a press mechanism, the combination of a rotatable carrier platehaving a die therein, a reciprocating press head having a plurality ofpressing members, and means for rotating said plate step by step equaldistances in one direction to progress an arsaidpressing members, saiddie and pressing members all be- 3 times the feed of said plate,

ing positioned equidistant from the axis of said plate, two of saidpressing members being separated from each other a circular distanceequal to the circular movement of said die during each actuation of saidrotating means, and another one of said pressing members being separatedfrom one of said first two named pressing members a circular distanceequal to an integral fraction of the circular movement of the die duringeach actuation, and the circular movement oi'said die each actuationbeing of a length which is exactly divisible into the {closed circularpathof said die plus-or'minus the circular distance between the thirdnamed pressing member and the adjacent one of said first two namedpressing members.

4. In a press mechanism, the combination of a carrier (:1 procatmg presshead having a plurality of pressmg'members, and means forintermittently. moving said plateequal distances in one direction toprogress an article in said die beneath said pressing members. twoofsaid pressing members being separated frbm each other a distance equalto the move ment of said die during each actuation of said intermittentmoving means, and another one of said pressing members being separatedfromfone of said first two named pressing members a distance less thanthe movement of the die during each intermittent actuation, and eachintermittent movement of said die being of a length which is exactly"divisible into one complete cyclic path of said die plus or minus thedistance between the thirdnamed pressing member and the adjacent one ofsaid first two'named pressing members;

5. In a press mechanism, the combination of a carrier plate having diesarranged therein to travel through a closed path, a reciprocating presshead having a'plurality of pressing members of varying character, andmeans for moving said plate intermittently equal distances to progressarticles in said dies beneath said pressing members, twoof said membersbeing spaced apart one distance'and another being spaced from one ofsaid first members a different distance, said plate moving-means beingcalculated to position an article in one .of said dies be: neath one ofsaid members during one travel of the plate, and, during the next travelof the plate beneath said press head, to cause said article to becarried past said pressing member and positioned in alignment withanother of said pressing members.

6. In a press mechanism, the combination of a rotatable carrier platehaving dies arranged therein, a reciprocating press head having aplurality of pressing members, said dies and pressing members being incurved series equidistant from the axis of said plate, said dies beingequally spaced apart, while a plurality of said pressin members arespaced apart one distance, and another one-of said members is spaced adifi'erent' distance from one of said'fir'st named members, so may bebrought simultaneously in alignment with said pressing members,

and pawl plate having a die therein, a rethat various of said dies andratchet mechanism for advancing said plate each actuation of said presshead, through such a peripheral distance that certain of said dies willbe positioned in alignment with onev of said pressing members during onerevolution of said plate, and during the next revolution of said platewill be carried past said pressing member and will be positioned inalignment with another of said pressing members. 1

7. In a press mechanism the combination of a reciprocating press headhaving a plural ity of pressing members, a carrier plate having aplurality of dies, and means for moving said plate step by step partlyunder and partly not under said press. head, said moving means acting tomove a given die into cooperation with certain only of said pressingmembers then out from under said press head and back again under saidpress head;

and into\co-operation with another of said pressing members until eachdie'has successively coacte'd with-each pressing mem ber, certain ofsaid pressing members being spaced apart by one distance and anotherbeing spaced a different distance from one of said first named members.

8. In a press mechanism, the combination'of a rotatable carrier platehaving a die therein, a reciprocating pres's head having a plurality ofpressing members arranged in a curved series cpncentric with said plate,means in alignment with said pressing mem- I bers, adapted to lift anarticle from said die, and-means for rotating said plate step by step toprogress an article in said dievbeneath said pressing members andadjacent to said lifting means, said rotating means being arranged torotate said plate equal distances to position the article beneathcertainonly of said pressing members, success sively, during one revolution ofsaid plate, and only beneath other of said pressing memberssubsequently, and then to position the article in position to permitsaid lifting means to operate thereon, said first named.

members being equally spaced apart, and said other of said pressingmembers and lifting members being spaced at different distances fromsaid first members.

Signed at New York, in the county of New York and State of New York,this 22d day of August A. D. 1921; I f

WALTER F. HEROLD.

